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2. Coupon collector's problem - Wikipedia

   en.wikipedia.org/wiki/Coupon_collector's_problem

   Coupon collector's problem. In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more ...

3. Coupon - Wikipedia

   en.wikipedia.org/wiki/Coupon

   Believed to be the first coupon ever, this ticket for a free glass of Coca-Cola was first distributed in 1888 to help promote the drink. By 1913, the company had redeemed 8.5 million tickets. [6] Coca-Cola's 1888-issued "free glass of" is the earliest documented coupon. [6] [7] Coupons were mailed to potential customers and placed in magazines ...

4. Alibaba Group - Wikipedia

   en.wikipedia.org/wiki/Alibaba_Group

   [203] [204] In 2019, Alibaba launched China-Russia flights in collaboration with Russian Post to assure fast shipping of products. [ 205 ] Alibaba owns the app Feizhu, which is a platform on which companies can sell tourism services such as day trips or cultural activities to Chinese consumers.

5. 15 Percent Pledge - Wikipedia

   en.wikipedia.org/wiki/15_Percent_Pledge

   The murder of George Floyd sparked a wave of activism for the Black Lives Matter movement that renewed calls for social justice reform and the end of systemic racism, and included declarations of support from various corporations; [2] [3] according to TIME Magazine, James wanted to "find a way that companies could make a tangible change," and "from there, the 15 Percent Pledge was born."

6. Pizza Hut - Wikipedia

   en.wikipedia.org/wiki/Pizza_Hut

   The brand began franchising in 1959, and its distinctive building style was designed by Chicago architect George Lindstrom in 1963. Pizza Hut experienced significant growth, including the acquisition by PepsiCo in 1977, followed by a spin-off into Tricon Global Restaurants, Inc., later renamed Yum! Brands [6] in 2002, who are the current owners.

7. Smartphone - Wikipedia

   en.wikipedia.org/wiki/Smartphone

   [48] [49] This kind of centralized App Store and free developer tools [50] [51] quickly became the new main paradigm for all smartphone platforms for software development, distribution, discovery, installation, and payment, in place of expensive developer tools that required official approval to use and a dependence on third-party sources ...